What a charming book! By coincidence this, the last in the series to appear (so far) was the first I read about the delightful Erast Petrovich Fandorin. Minutes after finishing I ordered the first three volumes, because I definitely want more of him.
There's nothing very special or high-brow about this book but so what? It's a superbly crafted old-fashioned detective story, indeed reminiscent of James Bond or other super-spies, but the Russian setting makes it all the more colourful and exotic.
A willing suspension of disbelief is necessary, but grant it and you'll be richly rewarded!